Question

Select the correct answer from each drop-down menu.

The graph shows the heating curve of a chemical substance as it undergoes state changes from solid to liquid to gas. Analyze the curve, and answer the questions.

The substance is entirely solid between positions,
A and B
B and C
C and D
D and E
E and F

Particles of the substance are in the liquid state and are gaining kinetic energy between positions,
A and B
B and C
C and D
D and E
E and F

Answer 1

1.A-B

2.C-D

Step-by-step explanation:

Answer 2

1- A and B.

2- C and D.

Step-by-step explanation:

Kindly, see the attached image carefully that shows the analysis of state changes from solid to liquid to gas at the heating curve of a chemical substance as it undergoes state changes from solid to liquid to gas.

• The region (A - B) represents the solid state of the chemical substance.

• The region (B - C) represents the presence of solid and liquid state of the chemical substance.

• The region (C - D) represents the liquid state of the chemical substance.

• The region (D - E) represents the presence of liquid and gas state of the chemical substance.

• The region (E - F) represents the gas state of the chemical substance.

So,

1- The substance is entirely solid between positions, A and B.

2- Particles of the substance are in the liquid state and are gaining kinetic energy between positions, C and D.